Finding the Fourth Proportional to 80,612,602.80, 120,895,478.19 and 31,417,507.20
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Solution
The fourth proportional to 80,612,602.80, 120,895,478.19 and 31,417,507.20 is: 47,117,130.88
Step by Step Solution
- Step 1: Write the proportion equation
80,612,602.80 : 120,895,478.19 = 31,417,507.20 : x - Step 2: Convert to fraction form
80,612,602.80/120,895,478.19 = 31,417,507.20/x - Step 3: Cross multiply
80,612,602.80x = 120,895,478.19 × 31,417,507.20 - Step 4: Simplify right side
80,612,602.80x = 3,798,234,556,481,768 - Step 5: Solve for x
x = 3,798,234,556,481,768/80,612,602.80 - Step 6: Final answer
x = 47,117,130.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.